Articles | Volume 11, issue 7
https://doi.org/10.5194/gmd-11-2897-2018
https://doi.org/10.5194/gmd-11-2897-2018
Model description paper
 | 
16 Jul 2018
Model description paper |  | 16 Jul 2018

Adding four-dimensional data assimilation by analysis nudging to the Model for Prediction Across Scales – Atmosphere (version 4.0)

Orren Russell Bullock Jr., Hosein Foroutan, Robert C. Gilliam, and Jerold A. Herwehe

Model code and software

Adding Four Dimensional Data Assimilation by Analysis Nudging to the Model for Prediction Across Scales - Atmosphere (MPAS-A) Version 4.0 O. R. Bullock Jr., H. Foroutan, R. C. Gilliam, and J. A. Herwehe https://doi.org/10.5281/zenodo.1101204

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Short summary
The U.S. Environmental Protection Agency is developing a new modeling system to investigate air pollution pathways on a global scale. We plan to use the Model for Prediction Across Scales – Atmosphere (MPAS-A) to define the meteorology that affects air pollution transport and fate. In order to do so, MPAS-A must accurately reproduce historical weather conditions. This work demonstrates that our implementation of four-dimensional data assimilation by analysis nudging provides that capability.